FRANKFORT — Marshall ranks 10th among Kentucky counties in release of toxic waste products, according to a state Department of Environmental Protection report.

The Toxic Release Inventory for the 2011 reporting year stated that 2.5 million pounds of toxins are were released.

No. 1 on the list was Carroll County, with 13.9 million pounds.

Nearly all releases measured in Marshal County were described as on-site releases.

Carroll was again on top in this category with over 9.7 million pounds of toxins released on-site.

Marshall fell in total toxins released from 2010, when the count was 3 million pounds. Trends have also fallen statewide.

Marshall County had no industrial facilities ranked in the top 10 for total releases, on-site release or off-site release or disposal.

Second among the top-five facilities releasing dioxin or dioxin-like compounds was Westlake Chemicals of Calvert City with 16.9 grams.

According to the World Health Organization, dioxins are highly toxic and can cause reproductive and developmental problems, damage the immune system, interfere with hormones and also cause cancer.

The experts established a provisional tolerable monthly intake (PTMI) of 70 picogram/kg per month. This level is the amount of dioxins that can be ingested over lifetime without detectable health effects, according to the WHO.

Westlake was first in off-site disposal of dioxin with 2,478 grams.

Aleris Recycling of Butler County led the on-site dioxin release with 121.47 grams.

The report named ISP Chemical as having the sixth largest decrease in toxins released with a reduction of 381,029 pounds. By percentage, the report named Arkema Inc. as having an increase of 756.4 percent.